4.7 Day 2.notebook

4.7 Day 2.notebook
October 21, 2014
10/21/2014
Please have out:
• 4.5­4.6 workday/ quiz review packet **I am collecting this
• blank piece of paper
• calculator / pencil
Any Questions about the review?
**The quiz is moved to next class. The key was posted to my website and emailed. We are finishing 4.7 today!
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4.7 Day 2.notebook
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SHOWDOWN
Simplify:
Warm-Up:
simplify each solution, keep exact (with square root). Then give the decimal value to the tenths place.!).
hint: you can split up this fraction as 2 fractions
where each term in the numerator is over the
same denominator. Then reduce them!
x = x = x =
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4.7 Day 2.notebook
October 21, 2014
SHOWDOWN
Simplify:
SHOWDOWN
Simplify:
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4.7 Day 2.notebook
October 21, 2014
SHOWDOWN
Simplify:
Extra Credit Opportunity!
Get CREATIVE and MUSICAL!!
­ song (any tune), dance (to the song), skit, rap, etc.
­ Lyrics must be the quadratic formula
­ make a movie, email it to me or bring it on a jumpdrive
­ 1­2 people can work together
"x = opposite of b"...
http://www.youtube.com/watch?v=2lbABbfU6Zc
http://www.youtube.com/watch?v=VqU_2y77_eI
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Looking over your homework #1-10 and the
two examples, do you notice any pattern to
the number of solutions a quadratic had?
When was there only 1 solution?
When were there 2 solutions?
Could there ever be more than 2 solutions?
Could there ever be 0 solutions?
2 points each (1 point per solution!)
score / 19 points total
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2 real
1 real
2 imaginary*
Where do graphs show "solutions?"
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YOU TRY!
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How can the quadratic formula help me solve this? What would you do?
Next yes or no? **How can the discriminant help you determine this?? What would you do?
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What's your strategy??
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board races! -How many solutions will there be?
How do you know?
3x2 ­ 12x + 12 = 0
Solve with the quadratic formula. Leave in simplified radical form.
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4.7 Day 2.notebook
October 21, 2014
3x2 ­ 12x + 12 = 0
board races! -How many solutions will there be? How do you know?
­x2 +10x = ­75
Solve with the quadratic formula. Leave in simplified radical form.
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4.7 Day 2.notebook
October 21, 2014
­x2 +10x = ­75
board races! -How many solutions will there be? How do you know?
­4x2 = ­7x +2 Solve with the quadratic formula. Leave in simplified radical form.
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4.7 Day 2.notebook
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­4x2 = ­7x +2 FOR YOUR NOTES - MINI LESSON
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4.7 Day 2.notebook
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HOMEWORK
• Finish 4.6­4.7 Packet, collected next time
• Next Class: 4.5­4.7 quiz
• Extra Credit DUE: Song/Skit/Rap?? Make your videos, email or jump drive!!
Math XL:
• 4.5 is due already
• 4.6 is optional
• 4.7 is due midnight next class
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